10031202281 has 2 divisors, whose sum is σ = 10031202282. Its totient is φ = 10031202280.

The previous prime is 10031202277. The next prime is 10031202287. The reversal of 10031202281 is 18220213001.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8980405225 + 1050797056 = 94765^2 + 32416^2 .

It is a cyclic number.

It is not a de Polignac number, because 10031202281 - 2² = 10031202277 is a prime.

It is a super-2 number, since 2×10031202281² (a number of 21 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (10031202287) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5015601140 + 5015601141.

It is an arithmetic number, because the mean of its divisors is an integer number (5015601141).

Almost surely, 2^10031202281 is an apocalyptic number.

It is an amenable number.

10031202281 is a deficient number, since it is larger than the sum of its proper divisors (1).

10031202281 is an equidigital number, since it uses as much as digits as its factorization.

10031202281 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 192, while the sum is 20.

Adding to 10031202281 its reverse (18220213001), we get a palindrome (28251415282).

The spelling of 10031202281 in words is "ten billion, thirty-one million, two hundred two thousand, two hundred eighty-one".